Portable electric heater



FIG. 1 shows a front perspective view of a portable electric heater incorporating our design;

FIG. 2 shows a left side perspective view of the portable electric heater shown in FIG. 1, the right side view being a mirror image of the left side;

FIG. 3 shows a top plan view of the portable electric heater shown in FIG. 1; and,

FIG. 4 shows a rear perspective view of the portable electric heater shown in FIG. 1.

The bottom of the design is flat and unornamented. 

The ornamental design for a portable electric heater, as shown and described. 